Mobile phone middle frame defective product repairing jig

By designing a repair fixture for defective mobile phone mid-frames, and utilizing a hot press and a precise heating structure, the problem of mid-frame scrap caused by defective VC was solved, reducing the scrap rate and improving production efficiency.

CN224525592UActive Publication Date: 2026-07-21HEBI GENGDE ELECTRONICS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBI GENGDE ELECTRONICS CO LTD
Filing Date
2025-08-19
Publication Date
2026-07-21

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Abstract

The utility model discloses a kind of mobile phone middle frame defective product repair jigs, including base and upper fixed plate, base and upper fixed plate are respectively corresponding connection fixed on the lower compression surface and upper compression surface of external hot compression machine, mobile phone middle frame depositing position is provided on the base, for positioning and depositing mobile phone middle frame, upper fixed plate bottom is fixedly installed with upper heating plate, the protrusion of shape profile vc glue path is correspondingly provided in the bottom of upper heating plate, for contacting mobile phone middle frame vc glue path heat conduction after compression.The utility model upper heating plate bottom is correspondingly provided with the protrusion of shape profile vc glue path, for contacting mobile phone middle frame vc glue path heat conduction after compression, ensure accurate heating;The utility model inserts heating rod in upper jig, heating rod is connected with hot compression machine outside, the temperature of heating is set on external hot compression machine table to accurately control the temperature of upper jig, so as to ensure the stability of each material processing;The utility model jig both ends are equipped with limit post, prevent machine platform overpressure and lead to product to be pressed scrap.
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Description

Technical Field

[0001] This utility model relates to the field of repair technology for defective mobile phone mid-frames, and in particular to a repair fixture for defective mobile phone mid-frames. Background Technology

[0002] As people's demands for mobile phones increase, mobile phone performance is constantly improving. At the same time, CPU heat dissipation has become more challenging. The best solution in the industry for mobile phone heat dissipation is to use VC (VC heat sink) cooling. This increases the difficulty for mid-frame manufacturers. For defects caused by conventional auxiliary materials, the defective products can be repaired by removing the old auxiliary materials and replacing them with new ones. However, for large VC structures, mobile phone mid-frames are limited by manufacturing processes, and there is a large area of ​​adhesive under the VC heat sink. Once the adhesive has cured, it cannot be removed. If there is a VC defect, the corresponding mid-frame must be scrapped, causing production difficulties. Therefore, there is an urgent need to develop a mid-frame repair fixture for mobile phone VC defects to reduce mid-frame scrap. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model designs a repair fixture for defective mobile phone mid-frames.

[0004] The present invention adopts the following technical solution: A repair fixture for defective mobile phone frames includes a base and an upper fixing plate. The base and the upper fixing plate are respectively connected and fixed to the lower pressing surface and the upper pressing surface of an external hot press machine. The base is provided with a mobile phone frame placement position for positioning and placing the mobile phone frame. An upper heating plate is fixedly installed at the bottom of the upper fixing plate. The bottom of the upper heating plate is provided with a protrusion that conforms to the shape of PVC adhesive path for heat conduction after pressing and contacting the PVC adhesive path of the mobile phone frame.

[0005] Preferably, the upper heating plate is a metal heat-conducting plate, and two through holes are provided in the upper heating plate for inserting an electric heating rod.

[0006] Preferably, the base is fitted with a corresponding positioning post, the position of which corresponds to the positioning hole on the phone frame. This ensures accurate positioning of the phone frame.

[0007] Preferably, the base is equipped with an outer positioning block, the position of which corresponds to the outer edge of the phone's mid-frame after placement. This facilitates quick and easy placement of the product.

[0008] Preferably, the base is provided with limit sleeves at both ends, and the bottom of the upper fixing plate is provided with corresponding limit posts at both ends. This prevents the product from being crushed and scrapped due to excessive pressure from the machine.

[0009] Preferably, an electronic thermal sensor is installed on the upper heating plate.

[0010] Preferably, the heating temperature on the upper heating plate is 70-80 degrees Celsius.

[0011] The beneficial effects of this utility model are: (1) The bottom of the upper heating plate of this utility model is provided with a protrusion that conforms to the shape of the PVC glue path, which is used to conduct heat to the PVC glue path of the mobile phone frame after pressing, so as to ensure precise heating; (2) A heating rod is inserted into the upper fixture, and the heating rod is connected to the hot press machine. The temperature of the upper fixture is precisely controlled by setting the heating temperature on the external hot press machine, thereby ensuring the processing stability of each piece of material; (3) Limiting posts are provided at both ends of the fixture to prevent the product from being crushed due to excessive pressure from the machine. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; In the diagram: 1. Base, 2. Upper fixing plate, 3. Limiting sleeve, 4. Limiting post, 5. Positioning post, 6. Mobile phone frame, 7. Upper heating plate, 8. Outer positioning block. Detailed Implementation

[0013] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings: Example: Figure 1 As shown, a repair fixture for defective mobile phone frames includes a base 1 and an upper fixing plate 2. The base and the upper fixing plate are respectively connected and fixed to the lower pressing surface and the upper pressing surface of an external hot press machine. The base is provided with a mobile phone frame placement position for positioning and placing the mobile phone frame 6. An upper heating plate 7 is fixedly installed at the bottom of the upper fixing plate. The bottom of the upper heating plate is provided with a protrusion that conforms to the shape of the PVC adhesive path for heat conduction after pressing and contacting the PVC adhesive path of the mobile phone frame.

[0014] The upper heating plate is a metal heat-conducting plate with two through holes for inserting electric heating rods.

[0015] The positioning post 5 is inserted into the base, and its position corresponds to the positioning hole on the phone frame. This ensures accurate positioning of the phone frame.

[0016] An outer positioning block 8 is installed on the base, and the position of the outer positioning block corresponds to the outer edge of the mobile phone frame after the product is placed. This makes it convenient for personnel to quickly place the product in place.

[0017] Limit sleeves 3 are installed at both ends of the base, and limit posts 4 are correspondingly installed at both ends of the bottom of the upper fixed plate. This prevents the product from being crushed and scrapped due to excessive pressure from the machine. An electronic thermal sensor is installed on the upper heating plate. The heating temperature on the upper heating plate is 70-80 degrees Celsius.

[0018] This utility model's repair fixture for defective mid-frames uses precise positioning and a hot press to soften the cured adhesive on the bottom of the defective PVC frame, allowing the PVC to be removed from the phone's mid-frame. This allows for the recycling of the phone's mid-frame without damaging its appearance, reducing the rate of defective mid-frame scrap, lowering costs, increasing efficiency, and enhancing the company's competitiveness.

[0019] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.

Claims

1. A repair fixture for defective mobile phone frames, comprising a base and an upper fixing plate, wherein the base and the upper fixing plate are respectively connected and fixed to the lower pressing surface and the upper pressing surface of an external hot press machine, characterized in that... The base is provided with a mobile phone frame mounting position for positioning and mounting the mobile phone frame. An upper heating plate is fixedly installed at the bottom of the upper fixing plate. The bottom of the upper heating plate is provided with a protrusion that conforms to the shape of the PVC adhesive path for heat conduction after pressing and contacting the PVC adhesive path of the mobile phone frame.

2. The mobile phone frame defective repair fixture according to claim 1, characterized in that, The upper heating plate is a metal heat-conducting plate, and two through holes are opened in the upper heating plate for inserting electric heating rods.

3. The mobile phone frame defective repair fixture according to claim 1, characterized in that, The base is fitted with a corresponding positioning post, and the position of the positioning post corresponds to the positioning hole on the mobile phone frame.

4. The mobile phone frame defective repair fixture according to claim 1, characterized in that, An outer positioning block is installed on the base, and the position of the outer positioning block corresponds to the outer edge of the mobile phone frame after it is placed.

5. A repair fixture for defective mobile phone frames according to claim 1, characterized in that, The base is provided with limit sleeves at both ends, and the bottom of the upper fixing plate is provided with corresponding limit posts at both ends.

6. A repair fixture for defective mobile phone frames according to claim 1, characterized in that, An electronic thermal sensor is installed on the upper heating plate.

7. A repair fixture for defective mobile phone frames according to claim 1, characterized in that, The heating temperature on the upper heating plate is 70-80 degrees Celsius.